Browse Prior Art Database

Interfacing Industrial Computers to the Personal Computer Standard Bus

IP.com Disclosure Number: IPCOM000101427D
Original Publication Date: 1990-Aug-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 75K

Publishing Venue

IBM

Related People

Adams, EM: AUTHOR [+5]

Abstract

A electrical mechanism is described by which a MICRO CHANNEL* co- processor is bridged to a standard (STD) bus. The concept is designed to increase the capability of industrial personal computers by providing an interface to the personal computer's co-processor.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Interfacing Industrial Computers to the Personal Computer Standard Bus

       A electrical mechanism is described by which a MICRO
CHANNEL* co- processor is bridged to a standard (STD) bus. The
concept is designed to increase the capability of industrial personal
computers by providing an interface to the personal computer's
co-processor.

      The STD bus, as used in personal computers, is a widely used
industrial control bus in that it provides a means of handling
different industrial applications.  However, it does not provide a
common user interface or a common use of a high level language.
Typically, automation equipment that is used to control tools is
driven by industrial computers. However, the industrial computers do
not include a flexible means to interface to tool control equipment.
This is because of a limited number of card slots and a limited
number of compatible cards available for tool control. Also,
operating system software does not provide a means to perform the
critical timing loops required for tool control.

      The concept described herein is designed to provide a means of
combining the use of an industrial computer with the industrial
control capabilities of the STD bus.  This is accomplished through
the use of an independent co-processor, through the MICRO CHANNEL
interface co-processor (MIC).  The MIC allows for the industrial
computer- based tool control by providing a second processor that
will perform the tool control functions.  The MIC also provides full
input/output (I/O) capabilities through a daughter card connector
that allows it to interface to I/O entities, such as the STD bus.

      The architecture of this concept consists of three printed
circuit cards and an interconnecting cable.  One circuit card is the
MIC co-processor which...